{"id":10701,"date":"2026-07-20T10:12:04","date_gmt":"2026-07-20T10:12:04","guid":{"rendered":"https:\/\/ic-vendor.com\/lm95214cisd-nopb\/"},"modified":"2026-07-20T10:12:04","modified_gmt":"2026-07-20T10:12:04","slug":"lm95214cisd-nopb","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/lm95214cisd-nopb\/","title":{"rendered":"LM95214CISD\/NOPB"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The LM95214CISD\/NOPB is a \u00b12\u00b0C quad remote diode and local temperature sensor from Texas Instruments, packaged in a 14-pin WSON (NHL) 4 \u00d7 4 mm package. It features four remote thermal diode inputs with \u00b11.1\u00b0C accuracy and one local temperature sensor with \u00b12.0\u00b0C accuracy, accessible via an SMBus 2.0 interface. The device supports programmable digital filters and analog front-end filtering for enhanced noise immunity in server and computing platforms.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0648\u0638\u064a\u0641\u0629<\/td>\nQuad Remote + Local Temperature Sensor<\/td>\n<\/tr>\n
Remote Channels<\/td>\n4 (thermal diode inputs)<\/td>\n<\/tr>\n
Local Sensor<\/td>\n1 (on-die)<\/td>\n<\/tr>\n
Remote Accuracy<\/td>\n\u00b11.1\u00b0C (max)<\/td>\n<\/tr>\n
Local Accuracy<\/td>\n\u00b12.0\u00b0C (max)<\/td>\n<\/tr>\n
Resolution<\/td>\n11-bit (0.125\u00b0C), 0.03125\u00b0C with digital filter<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n3.0V to 3.6V<\/td>\n<\/tr>\n
\u0627\u0644\u0648\u0627\u062c\u0647\u0629<\/td>\nSMBus 2.0<\/td>\n<\/tr>\n
\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/td>\nProgrammable digital filters, TCRIT outputs, offset correction<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nWSON-14 (4.0 \u00d7 4.0 mm)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40\u00b0C to +140\u00b0C (remote), -40\u00b0C to +125\u00b0C (local)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Four remote thermal diode inputs with industry-leading \u00b11.1\u00b0C accuracy<\/li>\n
  • 11-bit resolution (0.125\u00b0C) with 0.03125\u00b0C using digital filter<\/li>\n
  • Three programmable TCRIT outputs for critical temperature alerts<\/li>\n
  • Programmable digital filters for noise rejection in server environments<\/li>\n
  • Analog front-end filter for remote diode path noise immunity<\/li>\n
  • Offset correction registers for sensor calibration<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Server CPU and GPU multi-core temperature monitoring<\/li>\n
    • Laptop and desktop thermal management systems<\/li>\n
    • Network processor and ASIC junction temperature sensing<\/li>\n
    • Data center rack environmental monitoring<\/li>\n
    • Industrial motor drive thermal protection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM95214CISD\/NOPB is a \u00b12\u00b0C quad remote diode and local temperature sensor from Texas Instruments, packaged in a 14-pin WSON (NHL) 4 \u00d7 4 mm package. It features four remote thermal diode inputs with \u00b11.1\u00b0C accuracy and one local temperature sensor with \u00b12.0\u00b0C accuracy, accessible via an SMBus 2.0 interface. The device supports […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,42],"tags":[2042],"chip_brand":[138],"class_list":["post-10701","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-sensors","tag-lm95214cisd-nopb","chip_brand-ti"],"acf":{"brief_explanation":"4 remote + 1 local temp sensor, \u00b11.1\u00b0C, SMBus, 11-bit, WSON-14","date_code":"","package_case":"WSON-14 (4.0 \u00d7 4.0 \u00d7 0.8 mm, exposed pad)","in_stock":3418,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm95214.pdf","price":"$2.15 @ 1ku","product_introduction":"The LM95214 is a high-precision multi-zone temperature sensor that monitors up to four remote thermal diodes and one local temperature zone. The remote channels achieve \u00b11.1\u00b0C maximum accuracy over the +25\u00b0C to +100\u00b0C range, making it suitable for critical thermal management in server and computing platforms. The device uses a switched-current measurement technique that biases the external thermal diode (typically integrated in Intel or AMD processors) at two current levels and measures the voltage difference to determine the junction temperature independent of diode process variations. The 11-bit ADC provides 0.125\u00b0C resolution, and the programmable digital filter can achieve 0.03125\u00b0C effective resolution with noise averaging.","working_principle":"The LM95214 measures remote temperature using the remote thermal diode technique. For each remote channel, the device alternately applies two bias currents (I1 and I2, where I2 \u2248 16 \u00d7 I1) to the external diode-connected transistor and measures the resulting base-emitter voltages (VBE1 and VBE2). The temperature is calculated from the voltage difference: \u0394VBE = VBE1 - VBE2 = (kT\/q) \u00d7 ln(I2\/I1), where k is Boltzmann's constant, q is the electron charge, and T is the absolute temperature. This ratio-metric measurement eliminates dependency on the transistor's process parameters. The analog front-end filter removes high-frequency noise from the remote diode traces, while the programmable digital filter averages multiple conversions to achieve 0.03125\u00b0C effective resolution. The local temperature sensor uses an internal bandgap-based circuit. All results are accessible through the SMBus 2.0 interface.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>D1+<\/td>Input<\/td>Remote diode 1 positive (connect to CPU thermal diode)<\/td><\/tr>
      2<\/td>D1-<\/td>Input<\/td>Remote diode 1 negative<\/td><\/tr>
      3<\/td>D2+<\/td>Input<\/td>Remote diode 2 positive<\/td><\/tr>
      4<\/td>D2-<\/td>Input<\/td>Remote diode 2 negative<\/td><\/tr>
      5<\/td>D3+<\/td>Input<\/td>Remote diode 3 positive<\/td><\/tr>
      6<\/td>D3-<\/td>Input<\/td>Remote diode 3 negative<\/td><\/tr>
      7<\/td>D4+<\/td>Input<\/td>Remote diode 4 positive<\/td><\/tr>
      8<\/td>D4-<\/td>Input<\/td>Remote diode 4 negative<\/td><\/tr>
      9<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      10<\/td>SMBDATA<\/td>I\/O<\/td>SMBus data (open-drain)<\/td><\/tr>
      11<\/td>SMBCLK<\/td>Input<\/td>SMBus clock<\/td><\/tr>
      12<\/td>VDD<\/td>Power<\/td>3.3V supply<\/td><\/tr>
      13<\/td>TCRIT1<\/td>Output<\/td>Critical temperature output 1<\/td><\/tr>
      14<\/td>TCRIT2\/ADDR<\/td>I\/O<\/td>Critical temp output 2 \/ address select<\/td><\/tr>
      EP<\/td>Thermal Pad<\/td>Power<\/td>Exposed pad \u2014 connect to GND<\/td><\/tr><\/table>","application_scenarios":"
      • Server platform quad-CPU core temperature monitoring with \u00b11.1\u00b0C accuracy<\/li>
      • Laptop multi-zone thermal management: CPU, GPU, chipset, and battery<\/li>
      • Network router ASIC junction temperature monitoring with TCRIT alerts<\/li>
      • Data center blade server environmental monitoring with high resolution<\/li>
      • Industrial motor drive IGBT junction temperature sensing<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LM96000CIMT\/NOPB<\/td>TSSOP-24<\/td>HW monitor + fan control, 2 remote diodes<\/td><\/tr>
        Maxim<\/td>MAX6697<\/td>TQFN-24<\/td>7-channel remote temp sensor<\/td><\/tr>
        ADI<\/td>ADT7481<\/td>QSOP-16<\/td>3 remote + 1 local temp sensor<\/td><\/tr>
        NXP<\/td>SA56004ED<\/td>TSSOP-24<\/td>Dual remote + local temp sensor<\/td><\/tr>
        Microchip<\/td>EMC1503<\/td>QFN-16<\/td>Dual remote temp sensor<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/comments?post=10701"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10701\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=10701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=10701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=10701"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=10701"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}